Determination of the O-14(alpha,p)F-17(g.s.) reaction rate by measurement of the H-1(F-17,alpha)O-14 cross section

Authors
Blackmon, JC Bardayan, DW Bradfield-Smith, W Champagne, AE Chen, AA Davinson, T Hahn, KI Kozub, RL Ma, Z Parker, PD Rajbaidya, G Runkle, RC Rowland, CM Shotter, AC Smith, MS Swartz, KB Visser, DW Woods, PJ
Citation
Jc. Blackmon et al., Determination of the O-14(alpha,p)F-17(g.s.) reaction rate by measurement of the H-1(F-17,alpha)O-14 cross section, NUCL PHYS A, 688(1-2), 2001, pp. 142C-145C
Citations number
8
Categorie Soggetti
Physics
Journal title
NUCLEAR PHYSICS A
ISSN journal
03759474 → ACNP
Volume
688
Issue
1-2
Year of publication
2001
Pages
142C - 145C
Database
ISI
SICI code
0375-9474(20010521)688:1-2<142C:DOTORR>2.0.ZU;2-G
Abstract
The O-14(alpha ,p)F-17 reaction is important during the ignition phase of x -ray bursts, but significant uncertainties in this reaction rate have persi sted due to uncertainties in the properties of excited states in Ne-18 and the unmeasured direct reaction cross section. The H-1(F-17,alpha)O-14 react ion, the time-inverse of the O-14(alpha, p)F-17(g.s.) reaction, was studied using a radioactive F-17 beam at, the Holifield Radioactive Ion Beam Facil ity. The (p, alpha) reaction and (p, p) elastic-scattering cross sections w ere measured over the energy range of interest for x-ray bursts, correspond ing to E-cm(alpha) = 1.0 - 2.6 MeV. Resonances corresponding to states in N e-18 with excitation energies E-x = 6.0 - 7.7 MeV were observed, and the di rect reaction cross section determined.